import java.util.Scanner;

public class ScoreLevel {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        System.out.print("请输入您的分数：");
        int score = sc.nextInt();
        if (score >= 90 && score <= 100) {
            System.out.println("您的分数" + score + "对应的等级为“优秀”");
        } else if (score >= 80 && score < 90) {
            System.out.println("您的分数" + score + "对应的等级为“良好”");
        } else if (score >= 60 && score < 80) {
            System.out.println("您的分数" + score + "对应的等级为“合格”");
        } else if (score < 60 && score >= 0) {
            System.out.println("您的分数" + score + "对应的等级为“不合格”");
        } else {
            System.out.println("无效成绩");
        }
        sc.close();
    }
}